138673677 has 16 divisors (see below), whose sum is σ = 187971840. Its totient is φ = 90921792.

The previous prime is 138673637. The next prime is 138673687. The reversal of 138673677 is 776376831.

It is a happy number.

138673677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138673677 - 2⁸ = 138673421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138673637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68443 + ... + 70439.

It is an arithmetic number, because the mean of its divisors is an integer number (11748240).

Almost surely, 2^138673677 is an apocalyptic number.

It is an amenable number.

138673677 is a deficient number, since it is larger than the sum of its proper divisors (49298163).

138673677 is a wasteful number, since it uses less digits than its factorization.

138673677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its digits is 889056, while the sum is 48.

The square root of 138673677 is about 11775.9788128206. The cubic root of 138673677 is about 517.6044606974.

The spelling of 138673677 in words is "one hundred thirty-eight million, six hundred seventy-three thousand, six hundred seventy-seven".